android:inputType="numberDecimal"
private InputFilter lengthFilter = new InputFilter() {
@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
// source:当前输入的字符
// start:输入字符的开始位置
// end:输入字符的结束位置
// dest:当前已显示的内容
// dstart:当前光标开始位置
// dent:当前光标结束位置
LogUtil.i("", "source=" + source + ",start=" + start + ",end=" + end + ",dest=" + dest.toString() + ",dstart=" + dstart + ",dend=" + dend);
if (dest.length() == 0 && source.equals(".")) {
return "0.";
}
String dValue = dest.toString();
String[] splitArray = dValue.split("\\.");
if (splitArray.length > 1) {
String dotValue = splitArray[1];
if (dotValue.length() == 2) {//输入框小数的位数
return "";
}
}
return null;
}
};
edit.setFilters(new InputFilter[]{lengthFilter});
原文:http://www.cnblogs.com/lucktian/p/6308519.html